MySQL：在表名中找不到记录

Question

崩溃后：

mysql> repair table lot_not_sold;
+------------------------+--------+----------+---------------------------------------------------------------+
| Table                  | Op     | Msg_type | Msg_text                                                      |
+------------------------+--------+----------+---------------------------------------------------------------+
| coinprice.lot_not_sold | repair | info     | Found block with too small length at 126188; Skipped          |
| coinprice.lot_not_sold | repair | info     | Wrong block with wrong total length starting at 147688        |
| coinprice.lot_not_sold | repair | info     | Wrong bytesec:   4-253-223 at 9784004; Skipped                |
| coinprice.lot_not_sold | repair | info     | Wrong bytesec:  48- 32-208 at 11538216; Skipped               |
| coinprice.lot_not_sold | repair | info     | Delete link points outside datafile at 4036632                |
| coinprice.lot_not_sold | repair | info     | Wrong bytesec:   0-  0-  0 at 1405636; Skipped                |
.... rows were skipped a lot ....
| coinprice.lot_not_sold | repair | warning  | Number of rows changed from 113619 to 115277                  |
| coinprice.lot_not_sold | repair | status   | OK                                                            |
+------------------------+--------+----------+---------------------------------------------------------------+
616 rows in set (1.77 sec)

这里有更多输出，但是由于大小限制，我也不得不跳过很多行。

SELECT * FROM coinprice.lot_not_sold  ORDER BY site DESC limit 2;
+------------+----------------------------+---------------------+--------+------+------------+------------+------+
| id         | fulltitle                  | added               | finish | site | startprice | blitzprice | url  |
+------------+----------------------------+---------------------+--------+------+------------+------------+------+
| 2924913561 | tttt 10 tttttttt 2001 ttttt| ?338-14-08 91:97:60 | NULL   |   78 |      0.000 |      4.379 | NULL |
| 2926483072 | Zamek w Krniku - 2z - 1998 | 2013-01-06 06:40:01 | NULL   |    5 |      2.839 |      0.000 | NULL |
+------------+----------------------------+---------------------+--------+------+------------+------------+------+
2 rows in set (0.00 sec)

请注意added，第一行显然不正确。

mysql> delete from lot_not_sold where site>5;
ERROR 1032 (HY000): Can't find record in 'lot_not_sold'

尝试检查：

mysql> check table lot_not_sold extended;
+------------------------+-------+----------+----------+
| Table                  | Op    | Msg_type | Msg_text |
+------------------------+-------+----------+----------+
| coinprice.lot_not_sold | check | status   | OK       |
+------------------------+-------+----------+----------+
1 row in set (2.95 sec)

接下来尝试再次选择，删除，修复 - 并且始终具有相同的结果。

mysql> show create table lot_not_sold;

 CREATE TABLE `lot_not_sold` (
  `id` int(11) unsigned NOT NULL,
  `fulltitle` varchar(120) NOT NULL,
  `added` datetime NOT NULL,
  `finish` datetime DEFAULT NULL COMMENT '???? ???????? ??????',
  `site` tinyint(4) NOT NULL,
  `startprice` float(8,3) unsigned NOT NULL,
  `blitzprice` float(8,3) unsigned DEFAULT NULL,
  `url` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`,`site`,`added`),
  KEY `IX_lot_not_sold_added` (`added`),
  KEY `IX_lot_not_sold_finish` (`finish`),
  KEY `IX_lot_not_sold_site` (`site`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AVG_ROW_LENGTH=114
/*!50100 PARTITION BY HASH (DAY(added))
PARTITIONS 4 */ 

是否可以修复此错误？是否有可能因为repair添加了约 2k 行而出现很多错误？

我在谷歌上搜索了一个提到非常老的错误的页面，但我的实例还不算太旧：

mysql  Ver 14.14 Distrib 5.1.66, for redhat-linux-gnu (x86_64) using readline 5.1

由于性能原因，选择了 MyISAM。现在我正在考虑切换到 InnoDB - 这是正确的方法吗？此表不断修改。

谢谢你。

Answer 1

您可以尝试使用 REPAIR TABLE myTable USE_FRM

“可能”您的.MYI文件丢失或标题损坏

此选项告诉 MySQL 不要信任 .MYI 文件头中的信息，而是使用 .frm 文件中的信息重新创建它

然而之前进行检查您的文档的MySQL 5.1版 ，使你的备份副本.MYI，.frm以及.MYD文件以数据以免丢失